[gcc r15-398] ada: Fix internal error with Put_Image aspect on access-to-class-wide type

[gcc r15-398] ada: Fix internal error with Put_Image aspect on access-to-class-wide type

[Marc Poulhi?s]

https://gcc.gnu.org/g:5270bfc6e8c85e99c966a696664dcc6878b8c590

commit r15-398-g5270bfc6e8c85e99c966a696664dcc6878b8c590
Author: Eric Botcazou <ebotcazou@adacore.com>
Date:   Thu Jan 18 16:25:06 2024 +0100

    ada: Fix internal error with Put_Image aspect on access-to-class-wide type
    
    This occurs with an instantiation of Ada.Containers.Vectors in a nested
    package on an access-to-class-wide type declared with the Put_Image aspect
    because of too late a freezing for the internal renaming generated for the
    Put_Image procedure.
    
    The change freezes this renaming immediately in this particular case; this
    is similar to a trick used in Build_Array_Put_Image_Procedure.
    
    gcc/ada/
    
            * sem_ch13.adb (New_Put_Image_Subprogram): In the nondeferred case
            coming from an aspect and for a type with delaying freezing, also
            freeze the subprogram immediately.

Diff:
---
 gcc/ada/sem_ch13.adb | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/gcc/ada/sem_ch13.adb b/gcc/ada/sem_ch13.adb
index 1f3f82772942..f3212f25dcc8 100644
--- a/gcc/ada/sem_ch13.adb
+++ b/gcc/ada/sem_ch13.adb
@@ -15112,6 +15112,11 @@ package body Sem_Ch13 is
       then
          Append_Freeze_Action (Ent, Subp_Decl);
 
+         --  We may freeze Subp_Id immediately since Ent has just been frozen.
+         --  This will help to shield us from potential late freezing issues.
+
+         Set_Is_Frozen (Subp_Id);
+
       else
          Insert_Action (N, Subp_Decl);
          Set_Entity (N, Subp_Id);